Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Control of power distribution between vehicle axis or wheels
Reexamination Certificate
2007-07-24
2007-07-24
Nguyen, Tan Q. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Control of power distribution between vehicle axis or wheels
C701S067000, C701S093000, C192S054100, C180S248000
Reexamination Certificate
active
11336933
ABSTRACT:
In the case of a control device for an at least temporarily four-wheel-driven motor vehicle, having a control unit which can variably distribute the driving torque of a drive unit as a function of operating conditions to primary driving wheels, which are permanently connected with the drive unit, and to secondary driving wheels which, if required, can be connected by way of a transfer clutch with the drive unit, in that the control unit determines a desired clutch torque which is to be set by an actuator device at the transfer clutch, one operating condition is the vehicle speed. The control unit is further developed such that, when the desired clutch torque is determined, at least one defined high-speed range is taken into account and in that a speed-range-related clutch torque assigned to the high-speed range is defined as a maximally permissible limit torque.
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Bayerische Motoren Werke Aktiengesellschaft
Crowell & Moring LLP
Nguyen Tan Q.
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